161490040

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{37039}}^1$

素因数の和:37159

約数の個数: 32

約数和(自身を含む): 366696000

約数和(自身を除く): 205205960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 37039, 74078, 148156, 185195, 296312, 370390, 740780, 1481560, 4037251, 8074502, 16149004, 20186255, 32298008, 40372510, 80745020, 161490040]

約数ペア:

[(1, 161490040), (2, 80745020), (4, 40372510), (5, 32298008), (8, 20186255), (10, 16149004), (20, 8074502), (40, 4037251), (109, 1481560), (218, 740780), (436, 370390), (545, 296312), (872, 185195), (1090, 148156), (2180, 74078), (4360, 37039)]